Grease cartridge



Aug. 31 1926.

E. M. KIRK GREASE CARTRIDGE Filed June 11. 1.925

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Patented Aug 31, 1926,

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Aiiplication filed are it, are, serial ire. eases.

This invention relates to an improvement in grease guns and more particularlytoa means Wherehy the materialinay be introduced intc the gun in a simple expeditious manner with an exactly prcper load and without entailing the usual and ohgect ou ahle direct handling of the material The invention consists in packing the grease-in Whatmay be termed original containers or" readily frangible material, such as thin Wax paper, or a readily disruptible with these containers or carreadily loaded in practically a single opera-.'

tion Without the liability of soiling the hands or clothing, it being apparent that the cartridge when applied'is readily disruptilole under the pressure of the gun to permit the ejection or" the greasein substantiallythe usual manner. g

The invention is illustrated in the accompanying drawings, in which:

Fig. 1 is aview'in' elevation, partly in sectiomof the improved grease gun,a cartridge being shogvvn in place therein Fig. 2 is an elevation of the cartridge. The grease usual type comprising a barrel 1, provided at one endwith a removable cap 2, interiorly threaded to cooperate with the exteriorly threaded end ofthe gun barrel, and formed vwith a discharge projection3, which if desired, may be formed for the ccnnection of an extension to permit delivery of the grease in the usual manner. The opposite end ,of the gun is exteriorly threaded to re- .ceive a cap 4, in which is threaded a plunger stem 5 provided beyond operating handle 6 and at that end to be extended within the barrel Wit-ha plunger 7.

The grease preferably of a hard or semiripheral edge of the gun is of any ordinaryorfit snugly Within against the the cap with an hard character is for the purpose of the present invention packed Within afrangible or disruptihle container 8 -tormmg a closed cartridge which isof a size of course to more or less snugly fit Within the barrel Lparticularly as'to the relative diameters of the barrel and cartridge. a

In chargingthe gun, the cartridge is introduced into the barrelfatter'the removal of the cap- 2,

and. after the re-application of the cap,

the gun isoperated in the usual mannera It is preferred that the plunger" 7 is of a diain eterto permit the Wall of the cartridgeto be interposed between the peplunger and the Wall oi the gun barrel, so that the plunger may tion of the gun and leave the Wall of the cartridge against the Wall of the gun barrel, Under any circumstances, it Will be apparent that the operation of the plunger will serve to break triolge and force the grease from the gun in the usual manner; I

After the contents of the cartridge has been used, the covering thereof may be readily removed from the gun and a ifreshv cartridge inserted when necessary. Claim: r i A grease cartridge for use in grease guns, comprising an integral cartridge constructed throughout of frangible" material adapted to the' 'rease gun and to com the cartridge including frangicompletely close the cartridge loss ofc0ntained grease when the cartridge is being handled outside the grease gun, the interior diameter of the'cartridge corresponding to the exterior diam eter of the pistonrof the grease gun to avoid interference with said Wall in the use of the cartridge. f

In testimony whereof I affix my signature.

I train M. snare tain grease, ble. ends to the material of the cartit? ' niove longitudinally of theharrel in opera- 

